﻿#!/usr/bin/env python3

from os.path import *



def main():
    '''
os.path -  对文件路径的各种操作
    '''
    print(main.__doc__)
    print("="*30)

    
    print(abspath("."))
    print(relpath("/abc/def/ghi.c", "/abc/def"))






    




if __name__=='__main__':
    main()


